(19)
(11) EP 0 423 680 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.03.1992 Bulletin 1992/12

(43) Date of publication A2:
24.04.1991 Bulletin 1991/17

(21) Application number: 90119739.2

(22) Date of filing: 15.10.1990
(51) International Patent Classification (IPC)5: G02B 5/18, G02B 5/32
(84) Designated Contracting States:
AT CH DE FR GB LI

(30) Priority: 16.10.1989 JP 268780/89

(71) Applicant: Toppan Printing Co., Ltd.
Taito-ku Tokyo (JP)

(72) Inventors:
  • Takahashi, Susumu
    Matsudo-shi, Chiba-ken (JP)
  • Toda, Toshiki
    Satte-shi, Saitama-ken (JP)
  • Iwata, Fujio
    Chiba-shi, Chiba-ken (JP)

(74) Representative: Tiedtke, Harro, Dipl.-Ing. et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München
80336 München (DE)


(56) References cited: : 
   
       


    (54) Method of manufacturing display having diffraction grating patterns


    (57) A method of manufacturing a display having diffraction grating patterns, comprises the steps of (a) obtaining a plurality of two-dimensional images by observing an object at a plurality of positions, and inputting images of the plurality of two-dimensional images to a computer, (b) selecting nth image data from the plurality of image data, (c) inputting data of a reproducing light source position and a view direction, (d) inputting predetermined dot data of the nth image data, (e) determining a pitch and a direction of a grating and an area of a dot on the basis of the data of the reproducing light source position and the view direction and the dot data, (f) moving an X-Y stage to a predetermined position on the basis of the dot data and delineating the diffraction grating by using an electron scanning unit, (g) sequentially incrementing an address of the dot data and repeating the steps (d) to (f) until all data corresponding to the nth image data are processed, and (h) selecting another image data, and repeating the steps (b) to (g) until all image data are processed.







    Search report